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Subject[PATCH -next] mm: Mark undo_dev_pagemap as __maybe_unused
Date
Several mips builds generate the following build warning.

mm/gup.c:1788:13: warning: 'undo_dev_pagemap' defined but not used

The function is declared unconditionally but only called from behind
various ifdefs. Mark it __maybe_unused.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
mm/gup.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/mm/gup.c b/mm/gup.c
index 7dde2e3a1963..95a373bd8f21 100644
--- a/mm/gup.c
+++ b/mm/gup.c
@@ -1785,7 +1785,8 @@ static inline pte_t gup_get_pte(pte_t *ptep)
}
#endif /* CONFIG_GUP_GET_PTE_LOW_HIGH */

-static void undo_dev_pagemap(int *nr, int nr_start, struct page **pages)
+static void __maybe_unused undo_dev_pagemap(int *nr, int nr_start,
+ struct page **pages)
{
while ((*nr) - nr_start) {
struct page *page = pages[--(*nr)];
--
2.7.4
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